I made an inlay to store all my measurement tools into one Systainer.
It specifically has room for:
Adding magnets in the designated slots just below the calliper and centerpunch will help them to stay in place as well. You will need 6 round 8x3mm magnets if you want to make use of this feature.
The author remixed this model.
The original is a template I created; this model has cutouts for my measurement tools.